A buffer overflow was found during UTF8 to Unicode string conversion within JavaScript with extremely large amounts of data. This vulnerability requires the use of a malicious or vulnerable legacy extension in order to occur. This vulnerability affects Thunderbird ESR < 52.8, Thunderbird < 52.8, and Firefox ESR < 52.8.
Published 2018-06-11 21:29:16
Updated 2019-03-11 15:20:32
View at NVD,   CVE.org
Vulnerability category: Overflow

Exploit prediction scoring system (EPSS) score for CVE-2018-5178

Probability of exploitation activity in the next 30 days: 0.40%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 71 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2018-5178

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
6.8
MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
NIST
8.1
HIGH CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
2.2
5.9
NIST

CWE ids for CVE-2018-5178

References for CVE-2018-5178

Products affected by CVE-2018-5178

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